Willis Launches Reputation Protection for Hotels

London, UK, October 12, 2011 – In the world of new media where bad news travels fast,
food-borne illness or accidents involving guests on site can ruin a hotel’s reputation, and their balance
sheet, overnight. To help protect hoteliers from losses as a result of such adverse publicity, Willis
Group Holdings (NYSE: WSH), the global insurance broker, in conjunction with Lloyd’s of London underwriter Kiln,
has created a policy aimed at limiting the financial fallout from negative PR.

The Hotel Reputation Protection 2.0 policy has been created to respond to incidents that lead to, or
are likely to lead to, losses resulting from adverse publicity through any medium, from traditional to
new media.

Specifically, the policy provides cover for lost revenue based on RevPAR figures, a performance metric in the
hotel industry that measures revenue per available room. It also provides cover for the cost of
hiring a crisis management consultant to assist during the first weeks of an incident. The policy
will pay up to €25 million for both the crisis management costs and the reimbursement of
the reduction in RevPAR.

The Willis-Kiln cover is designed to protect hotels against some of the most common causes of brand
damage, including the death or permanent physical disability of a guest, and food poisoning caused by
malicious or accidental contamination. Also covered are outbreaks of Norovirus, which is responsible for about 90
per cent of stomach illnesses, and Legionnaire’s disease, a potentially fatal lung infection that can be
contracted through the consumption of contaminated water.

Laurie Fraser, Global Markets Leisure Practice Leader for Willis said: “In the extremely competitive hotel industry, reputation
accounts for approximately 30-40 per cent of a business’s overall worth. Therefore, damage to reputation, which
spreads virally through social and other media channels, can have a significant financial impact. Our product
is designed to tackle both the actual loss of revenue and the costs of containment.”

Paul Culham, Active Underwriter of the Enterprise Risk division at Kiln, which co-developed the product, said: “This
development is yet another example of how Kiln’s focus on innovation and our partnership approach can
enable pioneering products like this to be brought to the market. Our cover will provide peace
of mind for businesses worried about the impact of potential brand damage on their bottom lines.”

About Willis

Willis Group Holdings plc is a leading global insurance broker. Through its subsidiaries, Willis develops and delivers
professional insurance, reinsurance, risk management, financial and human resource consulting and actuarial services to corporations, public
entities and institutions around the world. Willis has more than 400 offices in nearly 120 countries,
with a global team of approximately 17,000 employees serving clients in virtually every part of the
world. Additional information on Willis may be found at www.willis.com.

About Kiln

Kiln is a forward thinking international insurance and reinsurance underwriting group with a portfolio of specialist risks.
Since 1962, it has built its business on the strength of its underwriting and its relationships.
A recognised leader in each of the seven main business areas in which it operates: property
and special lines, marine, reinsurance, accident and health, aviation, life and enterprise risk, Kiln syndicates benefit
from a security rating of ‘A+’ (Strong) assigned to Lloyd’s by Standard & Poor’s. Kiln is
part of the ‘AA-’ rated Tokio Marine Group. Its UK operating company, R J Kiln &
Co Limited, currently manages five syndicates at Lloyd’s and, in terms of capacity, is one of
the largest agencies trading in the Lloyd’s insurance market. In addition to the UK, Kiln has
offices in Hong Kong, Singapore, South Africa, France, Germany, Belgium and Brazil. For more information about
Kiln, visit www.kilngroup.com.